Sellersville leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 91% of adults in Sellersville typically vote, above the U.S. average of about 62%. Among adults in Sellersville, ~41% vote Democratic, ~50% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Sellersville compares
Among cities within 25 miles, Sellersville leans more Republican than 122 of 184 neighbors.
Sellersville runs about 8 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Sellersville. The east side runs the most Democratic (D+2) and the northeast side runs the most Republican (R+23), a spread of about 25 points.
Why Sellersville leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Sellersville, not a ranked or complete list of what matters most.
Sellersville votes Republican even though it is densely developed (about 57%, well above the Pennsylvania average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Sellersville, PA sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Sellersville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sellersville is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Sellersville have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Silverdale, PA R+14
- Perkasie, PA R+12
- Telford, PA R+9
- Souderton, PA R+2
- Argus, PA R+27
- Milford Square, PA R+18
- Trumbauersville, PA R+17
- Line Lexington, PA R+9
- Dublin, PA R+8
- Weisel, PA R+25
Cities with Similar Populations
- Smithville, MO R+39
- Kewanee, IL R+14
- West Freehold, NJ R+16
- Wabash, IN R+44
- River Ridge, LA R+20
- Wellington, CO R+23
- West Point, MS D+20
- Coopersburg, PA R+13
- Longs, SC R+27
- Kingston, MA D+4
Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau of Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.